Allantoin

By Nur → Last verified 9/26/2026

What it is

Allantoin is a soothing compound, naturally occurring in some plants and also made synthetically, used broadly across Korean cleansers, serums, moisturizers, and sunscreens to calm irritation.

What the evidence says

Calms irritation and supports skin healing, often paired with other barrier-focused ingredients rather than used alone. It's one of the more commonly confirmed supporting actives across this catalog, appearing in products as different as a watery sunscreen, a rich barrier cream, and a mineral sunscreen alike.

Who it's for

Nearly everyone, it's a broadly well-tolerated soothing ingredient used across almost every skincare category.

Worth knowing

No specific group needs to avoid allantoin.

Where you'll find it

Products in our catalog that list Allantoin as a key ingredient.

Frequently asked

What does allantoin do for skin?

It calms irritation and supports skin healing, often paired with other barrier-focused ingredients rather than used as a standalone active.

Is allantoin natural or synthetic?

It can be either, allantoin occurs naturally in some plants and is also produced synthetically for use in skincare formulas.

How common is allantoin in Korean skincare?

Very common, it appears as a supporting soothing ingredient across cleansers, serums, moisturizers, and sunscreens alike in this catalog.